What style of composition is Haydn known for?

Haydn is best known for his instrumental music, especially his symphonies and string quartets. He is widely regarded as the father of the modern symphony and the string quartet. His instrumental compositions display a masterful use of counterpoint, thematic development, and orchestration. Haydn's music is characterized by its clarity of form, melodic elegance, and emotional expressiveness, making him a central figure in the Classical period of Western music.